Monroe County

Formed 29 Jan 1813, 456 square milesParent county: Belmont

Evolution of county from date of formation until it assumed its final form1 Mar 1813: Erected and attached to Belmont, Washington, and Guernsey until organized1 Mar 1815: Organized. Part of Washington attached.24 Dec 1819: Part of Morgan attached1 Apr 1851: Diminished by formation of Noble. Part of Washington attached.